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Fast Graphic Display Disclosure Number: IPCOM000034666D
Original Publication Date: 1989-Apr-01
Included in the Prior Art Database: 2005-Jan-27

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Tannhof, P Vallet, V [+details]


This article describes a method for reducing the delay of the display of a large number of points when using routines of a graphic control program such as GDDM* (Graphic Data Display Manager). When using such routines, we realize that the time necessary to construct a graphic with a large number of points becomes quickly prohibitive for an interactive program. a) The delay is not reduced when specifying a window where a few points are present. b) On the other hand, if one has to display a large number of points on a small area of the screen, all the points will be processed and displayed by GDDM even if a few points fall on the same pixel. According to this article, the principle is to sort the points before calling the graphic functions.